./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Fibonacci03.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive/Fibonacci03.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:35:02,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:35:02,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:35:02,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:35:02,345 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:35:02,346 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:35:02,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:35:02,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:35:02,355 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:35:02,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:35:02,362 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:35:02,364 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:35:02,364 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:35:02,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:35:02,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:35:02,370 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:35:02,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:35:02,372 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:35:02,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:35:02,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:35:02,381 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:35:02,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:35:02,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:35:02,386 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:35:02,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:35:02,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:35:02,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:35:02,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:35:02,393 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:35:02,395 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:35:02,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:35:02,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:35:02,397 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:35:02,399 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:35:02,400 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:35:02,401 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:35:02,402 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:35:02,402 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:35:02,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:35:02,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:35:02,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:35:02,406 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 07:35:02,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:35:02,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:35:02,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:35:02,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:35:02,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 07:35:02,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 07:35:02,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:35:02,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:35:02,464 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:35:02,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:35:02,465 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:35:02,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:35:02,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:35:02,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:35:02,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 07:35:02,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 07:35:02,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 07:35:02,471 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:35:02,471 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:35:02,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:35:02,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 07:35:02,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:35:02,472 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:35:02,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 07:35:02,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:35:02,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:35:02,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 07:35:02,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 07:35:02,475 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:35:02,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 07:35:02,477 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 07:35:02,477 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 07:35:02,478 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 07:35:02,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:35:02,478 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> be0a584ba9648c80e7a0523ff51ba530f1926c55cecd3c62f2cee05fbbff42e3 [2021-11-20 07:35:02,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:35:02,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:35:02,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:35:02,838 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:35:02,839 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:35:02,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/recursive/Fibonacci03.c [2021-11-20 07:35:02,948 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/data/7fca3c559/08beade48a9d4e27a8826e4f4cdebd02/FLAG89723c9fd [2021-11-20 07:35:03,574 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:35:03,575 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/sv-benchmarks/c/recursive/Fibonacci03.c [2021-11-20 07:35:03,584 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/data/7fca3c559/08beade48a9d4e27a8826e4f4cdebd02/FLAG89723c9fd [2021-11-20 07:35:03,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/data/7fca3c559/08beade48a9d4e27a8826e4f4cdebd02 [2021-11-20 07:35:03,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:35:03,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:35:03,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:03,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:35:03,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:35:03,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:03" (1/1) ... [2021-11-20 07:35:03,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c62c7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:03, skipping insertion in model container [2021-11-20 07:35:03,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:35:03" (1/1) ... [2021-11-20 07:35:03,970 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:35:03,985 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:35:04,228 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2021-11-20 07:35:04,238 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:04,253 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:35:04,280 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/sv-benchmarks/c/recursive/Fibonacci03.c[788,801] [2021-11-20 07:35:04,282 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:35:04,300 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:35:04,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04 WrapperNode [2021-11-20 07:35:04,301 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:35:04,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:04,307 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:35:04,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:35:04,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,326 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,350 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-11-20 07:35:04,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:35:04,352 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:35:04,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:35:04,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:35:04,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,366 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,379 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,390 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:35:04,391 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:35:04,393 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:35:04,393 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:35:04,394 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (1/1) ... [2021-11-20 07:35:04,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 07:35:04,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:04,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 07:35:04,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 07:35:04,516 INFO L130 BoogieDeclarations]: Found specification of procedure fibonacci [2021-11-20 07:35:04,517 INFO L138 BoogieDeclarations]: Found implementation of procedure fibonacci [2021-11-20 07:35:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:35:04,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:35:04,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:35:04,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:35:04,606 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:35:04,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:35:04,794 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:35:04,801 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:35:04,804 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-20 07:35:04,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:35:04 BoogieIcfgContainer [2021-11-20 07:35:04,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:35:04,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 07:35:04,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 07:35:04,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 07:35:04,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:35:03" (1/3) ... [2021-11-20 07:35:04,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657997e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:35:04, skipping insertion in model container [2021-11-20 07:35:04,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:35:04" (2/3) ... [2021-11-20 07:35:04,820 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657997e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:35:04, skipping insertion in model container [2021-11-20 07:35:04,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:35:04" (3/3) ... [2021-11-20 07:35:04,822 INFO L111 eAbstractionObserver]: Analyzing ICFG Fibonacci03.c [2021-11-20 07:35:04,829 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 07:35:04,830 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 07:35:04,912 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 07:35:04,926 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-20 07:35:04,927 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 07:35:04,962 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-20 07:35:04,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-20 07:35:04,974 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:04,975 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:04,976 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:04,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:04,984 INFO L85 PathProgramCache]: Analyzing trace with hash 1939714822, now seen corresponding path program 1 times [2021-11-20 07:35:04,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:04,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484242841] [2021-11-20 07:35:04,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:04,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:05,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:05,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:05,256 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:05,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484242841] [2021-11-20 07:35:05,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484242841] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:35:05,257 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:35:05,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:35:05,260 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938796627] [2021-11-20 07:35:05,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:35:05,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:35:05,266 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:05,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:35:05,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:35:05,304 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 15 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:35:05,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:05,408 INFO L93 Difference]: Finished difference Result 32 states and 38 transitions. [2021-11-20 07:35:05,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:35:05,411 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-11-20 07:35:05,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:05,434 INFO L225 Difference]: With dead ends: 32 [2021-11-20 07:35:05,434 INFO L226 Difference]: Without dead ends: 19 [2021-11-20 07:35:05,438 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:35:05,443 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 11 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:05,449 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 53 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:35:05,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-11-20 07:35:05,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-11-20 07:35:05,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-20 07:35:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-20 07:35:05,521 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 11 [2021-11-20 07:35:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:05,521 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-20 07:35:05,522 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:35:05,522 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-20 07:35:05,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-20 07:35:05,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:05,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:05,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 07:35:05,530 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:05,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:05,533 INFO L85 PathProgramCache]: Analyzing trace with hash 692912656, now seen corresponding path program 1 times [2021-11-20 07:35:05,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:05,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181769967] [2021-11-20 07:35:05,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:05,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:05,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:05,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:05,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:35:05,688 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:05,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181769967] [2021-11-20 07:35:05,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181769967] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:35:05,689 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:35:05,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:35:05,690 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976977058] [2021-11-20 07:35:05,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:35:05,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 07:35:05,692 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:05,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 07:35:05,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 07:35:05,694 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:35:05,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:05,798 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-11-20 07:35:05,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 07:35:05,799 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-11-20 07:35:05,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:05,801 INFO L225 Difference]: With dead ends: 25 [2021-11-20 07:35:05,801 INFO L226 Difference]: Without dead ends: 21 [2021-11-20 07:35:05,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:35:05,803 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 7 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:05,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 36 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:35:05,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-11-20 07:35:05,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2021-11-20 07:35:05,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2021-11-20 07:35:05,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2021-11-20 07:35:05,826 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2021-11-20 07:35:05,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:05,827 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2021-11-20 07:35:05,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 07:35:05,834 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2021-11-20 07:35:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-20 07:35:05,836 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:05,836 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:05,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 07:35:05,837 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:05,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:05,837 INFO L85 PathProgramCache]: Analyzing trace with hash 453332055, now seen corresponding path program 1 times [2021-11-20 07:35:05,840 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:05,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672327028] [2021-11-20 07:35:05,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:05,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:05,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:05,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:05,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:05,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-11-20 07:35:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:05,997 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 07:35:05,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:05,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672327028] [2021-11-20 07:35:05,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672327028] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:05,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197030394] [2021-11-20 07:35:05,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:06,000 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:06,000 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:06,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:06,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 07:35:06,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:06,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-20 07:35:06,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:06,275 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-11-20 07:35:06,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-20 07:35:06,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197030394] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:06,594 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:06,594 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 13 [2021-11-20 07:35:06,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448195340] [2021-11-20 07:35:06,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:06,595 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-20 07:35:06,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:06,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-20 07:35:06,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-11-20 07:35:06,598 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-20 07:35:06,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:06,888 INFO L93 Difference]: Finished difference Result 47 states and 70 transitions. [2021-11-20 07:35:06,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 07:35:06,889 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) Word has length 24 [2021-11-20 07:35:06,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:06,895 INFO L225 Difference]: With dead ends: 47 [2021-11-20 07:35:06,896 INFO L226 Difference]: Without dead ends: 30 [2021-11-20 07:35:06,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 49 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2021-11-20 07:35:06,902 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 30 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:06,902 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 69 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:35:06,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-11-20 07:35:06,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2021-11-20 07:35:06,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 20 states have (on average 1.2) internal successors, (24), 22 states have internal predecessors, (24), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2021-11-20 07:35:06,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 42 transitions. [2021-11-20 07:35:06,919 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 42 transitions. Word has length 24 [2021-11-20 07:35:06,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:06,920 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 42 transitions. [2021-11-20 07:35:06,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.0) internal successors, (36), 13 states have internal predecessors, (36), 7 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (9), 5 states have call predecessors, (9), 7 states have call successors, (9) [2021-11-20 07:35:06,921 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 42 transitions. [2021-11-20 07:35:06,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-20 07:35:06,928 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:06,929 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 7, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:06,970 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:07,142 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:07,142 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:07,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:07,144 INFO L85 PathProgramCache]: Analyzing trace with hash -872442578, now seen corresponding path program 1 times [2021-11-20 07:35:07,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:07,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429111135] [2021-11-20 07:35:07,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:07,145 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:07,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:07,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:07,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:07,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:07,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:07,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,622 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 44 proven. 63 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-11-20 07:35:07,622 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:07,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429111135] [2021-11-20 07:35:07,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429111135] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:07,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116448569] [2021-11-20 07:35:07,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:07,624 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:07,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:07,625 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:07,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 07:35:07,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:07,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 07:35:07,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:07,937 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 75 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-11-20 07:35:07,938 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:08,565 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 16 proven. 82 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-11-20 07:35:08,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116448569] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:08,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:08,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7, 9] total 18 [2021-11-20 07:35:08,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398035957] [2021-11-20 07:35:08,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:08,574 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-20 07:35:08,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:08,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-20 07:35:08,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=231, Unknown=0, NotChecked=0, Total=306 [2021-11-20 07:35:08,583 INFO L87 Difference]: Start difference. First operand 30 states and 42 transitions. Second operand has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2021-11-20 07:35:08,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:08,948 INFO L93 Difference]: Finished difference Result 74 states and 124 transitions. [2021-11-20 07:35:08,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-20 07:35:08,950 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) Word has length 66 [2021-11-20 07:35:08,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:08,967 INFO L225 Difference]: With dead ends: 74 [2021-11-20 07:35:08,967 INFO L226 Difference]: Without dead ends: 45 [2021-11-20 07:35:08,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=173, Invalid=427, Unknown=0, NotChecked=0, Total=600 [2021-11-20 07:35:08,975 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 58 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:08,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [61 Valid, 110 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 07:35:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-11-20 07:35:08,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2021-11-20 07:35:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 7 states have call successors, (7), 4 states have call predecessors, (7), 6 states have return successors, (24), 9 states have call predecessors, (24), 7 states have call successors, (24) [2021-11-20 07:35:08,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 67 transitions. [2021-11-20 07:35:08,994 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 67 transitions. Word has length 66 [2021-11-20 07:35:08,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:08,995 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 67 transitions. [2021-11-20 07:35:08,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.888888888888889) internal successors, (52), 18 states have internal predecessors, (52), 11 states have call successors, (14), 1 states have call predecessors, (14), 7 states have return successors, (18), 11 states have call predecessors, (18), 11 states have call successors, (18) [2021-11-20 07:35:08,996 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 67 transitions. [2021-11-20 07:35:09,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2021-11-20 07:35:09,008 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:09,008 INFO L514 BasicCegarLoop]: trace histogram [25, 25, 17, 12, 12, 12, 12, 12, 12, 12, 8, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:09,049 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:09,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:09,232 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:09,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:09,233 INFO L85 PathProgramCache]: Analyzing trace with hash -1668610484, now seen corresponding path program 2 times [2021-11-20 07:35:09,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:09,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096077068] [2021-11-20 07:35:09,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:09,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:09,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:35:09,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-11-20 07:35:09,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:09,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:35:09,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:09,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-20 07:35:09,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:09,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:09,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:09,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 253 proven. 368 refuted. 0 times theorem prover too weak. 979 trivial. 0 not checked. [2021-11-20 07:35:09,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:09,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096077068] [2021-11-20 07:35:09,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096077068] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:09,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080547785] [2021-11-20 07:35:09,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 07:35:09,954 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:09,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:09,960 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:09,983 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 07:35:10,095 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 07:35:10,096 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:35:10,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:35:10,118 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:10,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 67 proven. 459 refuted. 0 times theorem prover too weak. 1074 trivial. 0 not checked. [2021-11-20 07:35:10,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:11,996 INFO L134 CoverageAnalysis]: Checked inductivity of 1600 backedges. 67 proven. 485 refuted. 0 times theorem prover too weak. 1048 trivial. 0 not checked. [2021-11-20 07:35:11,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080547785] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:11,998 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:11,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 13] total 23 [2021-11-20 07:35:11,999 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062485636] [2021-11-20 07:35:11,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:12,001 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-11-20 07:35:12,002 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:12,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-11-20 07:35:12,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2021-11-20 07:35:12,006 INFO L87 Difference]: Start difference. First operand 45 states and 67 transitions. Second operand has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) [2021-11-20 07:35:12,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:12,653 INFO L93 Difference]: Finished difference Result 116 states and 215 transitions. [2021-11-20 07:35:12,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-11-20 07:35:12,654 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) Word has length 172 [2021-11-20 07:35:12,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:12,657 INFO L225 Difference]: With dead ends: 116 [2021-11-20 07:35:12,657 INFO L226 Difference]: Without dead ends: 73 [2021-11-20 07:35:12,661 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=438, Invalid=1122, Unknown=0, NotChecked=0, Total=1560 [2021-11-20 07:35:12,662 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 96 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:12,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 137 Invalid, 424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 07:35:12,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-11-20 07:35:12,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 63. [2021-11-20 07:35:12,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 11 states have call successors, (11), 6 states have call predecessors, (11), 8 states have return successors, (37), 13 states have call predecessors, (37), 11 states have call successors, (37) [2021-11-20 07:35:12,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 100 transitions. [2021-11-20 07:35:12,681 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 100 transitions. Word has length 172 [2021-11-20 07:35:12,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:12,681 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 100 transitions. [2021-11-20 07:35:12,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.782608695652174) internal successors, (64), 23 states have internal predecessors, (64), 15 states have call successors, (18), 1 states have call predecessors, (18), 10 states have return successors, (26), 13 states have call predecessors, (26), 15 states have call successors, (26) [2021-11-20 07:35:12,682 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 100 transitions. [2021-11-20 07:35:12,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2021-11-20 07:35:12,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:12,692 INFO L514 BasicCegarLoop]: trace histogram [51, 51, 41, 25, 25, 25, 25, 25, 25, 25, 16, 10, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:12,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:12,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:12,908 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:12,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:12,909 INFO L85 PathProgramCache]: Analyzing trace with hash 2146373423, now seen corresponding path program 3 times [2021-11-20 07:35:12,909 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:12,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74167683] [2021-11-20 07:35:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:12,910 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:12,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:13,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:13,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:13,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:13,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:13,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:35:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:13,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:13,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 07:35:13,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:13,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:13,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:13,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:13,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:13,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:13,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:35:13,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:13,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:13,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:14,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:14,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:14,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:14,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:14,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:14,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:14,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:14,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:14,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:14,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:14,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:14,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:14,032 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 844 proven. 1612 refuted. 0 times theorem prover too weak. 4664 trivial. 0 not checked. [2021-11-20 07:35:14,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:14,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74167683] [2021-11-20 07:35:14,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74167683] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:14,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2119423487] [2021-11-20 07:35:14,034 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-20 07:35:14,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:14,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:14,036 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:14,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-20 07:35:14,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2021-11-20 07:35:14,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:35:14,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-20 07:35:14,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 986 proven. 214 refuted. 0 times theorem prover too weak. 5920 trivial. 0 not checked. [2021-11-20 07:35:15,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:17,218 INFO L134 CoverageAnalysis]: Checked inductivity of 7120 backedges. 986 proven. 248 refuted. 0 times theorem prover too weak. 5886 trivial. 0 not checked. [2021-11-20 07:35:17,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2119423487] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:17,218 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:17,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 9, 13] total 33 [2021-11-20 07:35:17,219 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342830805] [2021-11-20 07:35:17,219 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:17,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-11-20 07:35:17,221 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:17,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-11-20 07:35:17,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=811, Unknown=0, NotChecked=0, Total=1056 [2021-11-20 07:35:17,223 INFO L87 Difference]: Start difference. First operand 63 states and 100 transitions. Second operand has 33 states, 33 states have (on average 2.393939393939394) internal successors, (79), 33 states have internal predecessors, (79), 16 states have call successors, (25), 1 states have call predecessors, (25), 14 states have return successors, (37), 29 states have call predecessors, (37), 16 states have call successors, (37) [2021-11-20 07:35:18,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:18,201 INFO L93 Difference]: Finished difference Result 187 states and 400 transitions. [2021-11-20 07:35:18,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-11-20 07:35:18,202 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.393939393939394) internal successors, (79), 33 states have internal predecessors, (79), 16 states have call successors, (25), 1 states have call predecessors, (25), 14 states have return successors, (37), 29 states have call predecessors, (37), 16 states have call successors, (37) Word has length 352 [2021-11-20 07:35:18,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:18,208 INFO L225 Difference]: With dead ends: 187 [2021-11-20 07:35:18,208 INFO L226 Difference]: Without dead ends: 126 [2021-11-20 07:35:18,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 853 GetRequests, 792 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1066 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=754, Invalid=2552, Unknown=0, NotChecked=0, Total=3306 [2021-11-20 07:35:18,213 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 222 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:18,214 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 219 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-20 07:35:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2021-11-20 07:35:18,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 108. [2021-11-20 07:35:18,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 77 states have (on average 1.1168831168831168) internal successors, (86), 74 states have internal predecessors, (86), 20 states have call successors, (20), 15 states have call predecessors, (20), 10 states have return successors, (51), 18 states have call predecessors, (51), 20 states have call successors, (51) [2021-11-20 07:35:18,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 157 transitions. [2021-11-20 07:35:18,247 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 157 transitions. Word has length 352 [2021-11-20 07:35:18,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:18,252 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 157 transitions. [2021-11-20 07:35:18,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.393939393939394) internal successors, (79), 33 states have internal predecessors, (79), 16 states have call successors, (25), 1 states have call predecessors, (25), 14 states have return successors, (37), 29 states have call predecessors, (37), 16 states have call successors, (37) [2021-11-20 07:35:18,252 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 157 transitions. [2021-11-20 07:35:18,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 939 [2021-11-20 07:35:18,303 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:18,304 INFO L514 BasicCegarLoop]: trace histogram [137, 137, 111, 68, 68, 68, 68, 68, 68, 68, 43, 26, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:18,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:18,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-20 07:35:18,528 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:18,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:18,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1748422918, now seen corresponding path program 4 times [2021-11-20 07:35:18,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:18,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627985186] [2021-11-20 07:35:18,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:18,529 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:20,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:20,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:20,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:20,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:21,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:21,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:21,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:21,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:35:21,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:21,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:21,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 07:35:21,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:21,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:21,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:21,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 07:35:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:21,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:21,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:21,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:35:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:21,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:21,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:21,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:21,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-20 07:35:22,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:22,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:22,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:22,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:22,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:22,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:35:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:22,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:22,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 07:35:22,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:22,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:22,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:22,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:22,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 07:35:22,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:22,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:23,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-11-20 07:35:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 364 [2021-11-20 07:35:23,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:23,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:23,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:23,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:23,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:23,164 INFO L134 CoverageAnalysis]: Checked inductivity of 52481 backedges. 5941 proven. 6883 refuted. 0 times theorem prover too weak. 39657 trivial. 0 not checked. [2021-11-20 07:35:23,164 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:23,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627985186] [2021-11-20 07:35:23,165 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627985186] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:23,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245881407] [2021-11-20 07:35:23,165 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-20 07:35:23,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:23,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:23,168 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:23,195 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-20 07:35:23,485 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-20 07:35:23,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:35:23,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 1665 conjuncts, 34 conjunts are in the unsatisfiable core [2021-11-20 07:35:23,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:25,544 INFO L134 CoverageAnalysis]: Checked inductivity of 52481 backedges. 4081 proven. 7576 refuted. 0 times theorem prover too weak. 40824 trivial. 0 not checked. [2021-11-20 07:35:25,545 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:35:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 52481 backedges. 4081 proven. 7723 refuted. 0 times theorem prover too weak. 40677 trivial. 0 not checked. [2021-11-20 07:35:34,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245881407] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:35:34,383 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:35:34,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 21, 35] total 52 [2021-11-20 07:35:34,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948485363] [2021-11-20 07:35:34,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:35:34,395 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-11-20 07:35:34,395 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:35:34,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-11-20 07:35:34,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=2066, Unknown=0, NotChecked=0, Total=2652 [2021-11-20 07:35:34,399 INFO L87 Difference]: Start difference. First operand 108 states and 157 transitions. Second operand has 52 states, 52 states have (on average 2.730769230769231) internal successors, (142), 52 states have internal predecessors, (142), 49 states have call successors, (55), 1 states have call predecessors, (55), 18 states have return successors, (83), 33 states have call predecessors, (83), 49 states have call successors, (83) [2021-11-20 07:35:35,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:35:35,708 INFO L93 Difference]: Finished difference Result 258 states and 509 transitions. [2021-11-20 07:35:35,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-20 07:35:35,709 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 2.730769230769231) internal successors, (142), 52 states have internal predecessors, (142), 49 states have call successors, (55), 1 states have call predecessors, (55), 18 states have return successors, (83), 33 states have call predecessors, (83), 49 states have call successors, (83) Word has length 938 [2021-11-20 07:35:35,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:35:35,718 INFO L225 Difference]: With dead ends: 258 [2021-11-20 07:35:35,719 INFO L226 Difference]: Without dead ends: 154 [2021-11-20 07:35:35,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2218 GetRequests, 2134 SyntacticMatches, 4 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2211 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1562, Invalid=5080, Unknown=0, NotChecked=0, Total=6642 [2021-11-20 07:35:35,730 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 427 mSDsluCounter, 230 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 855 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 1516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 855 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-11-20 07:35:35,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [427 Valid, 274 Invalid, 1516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [855 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-11-20 07:35:35,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-20 07:35:35,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 127. [2021-11-20 07:35:35,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 91 states have (on average 1.032967032967033) internal successors, (94), 88 states have internal predecessors, (94), 25 states have call successors, (25), 20 states have call predecessors, (25), 10 states have return successors, (64), 18 states have call predecessors, (64), 25 states have call successors, (64) [2021-11-20 07:35:35,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 183 transitions. [2021-11-20 07:35:35,789 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 183 transitions. Word has length 938 [2021-11-20 07:35:35,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:35:35,792 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 183 transitions. [2021-11-20 07:35:35,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 2.730769230769231) internal successors, (142), 52 states have internal predecessors, (142), 49 states have call successors, (55), 1 states have call predecessors, (55), 18 states have return successors, (83), 33 states have call predecessors, (83), 49 states have call successors, (83) [2021-11-20 07:35:35,794 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 183 transitions. [2021-11-20 07:35:35,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2021-11-20 07:35:35,825 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 07:35:35,826 INFO L514 BasicCegarLoop]: trace histogram [109, 109, 88, 54, 54, 54, 54, 54, 54, 54, 34, 21, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:35:35,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-20 07:35:36,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:36,052 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 07:35:36,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:35:36,053 INFO L85 PathProgramCache]: Analyzing trace with hash -425340118, now seen corresponding path program 5 times [2021-11-20 07:35:36,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:35:36,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626121118] [2021-11-20 07:35:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:35:36,053 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:35:36,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:36,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:37,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:37,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:37,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:37,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:37,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:38,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:38,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:35:38,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 07:35:38,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:38,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:38,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-11-20 07:35:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:38,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:38,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:35:38,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:38,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-11-20 07:35:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-11-20 07:35:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:39,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:39,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-11-20 07:35:39,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:39,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-11-20 07:35:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-11-20 07:35:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 07:35:39,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-11-20 07:35:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-11-20 07:35:39,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:35:39,296 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-11-20 07:35:39,296 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:35:39,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626121118] [2021-11-20 07:35:39,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626121118] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 07:35:39,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749478746] [2021-11-20 07:35:39,297 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-11-20 07:35:39,298 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:35:39,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:35:39,300 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 07:35:39,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-20 07:35:39,934 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 93 check-sat command(s) [2021-11-20 07:35:39,934 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 07:35:39,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 1681 conjuncts, 220 conjunts are in the unsatisfiable core [2021-11-20 07:35:39,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 07:35:41,871 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-11-20 07:35:41,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 07:36:27,602 INFO L134 CoverageAnalysis]: Checked inductivity of 33096 backedges. 5957 proven. 4942 refuted. 0 times theorem prover too weak. 22197 trivial. 0 not checked. [2021-11-20 07:36:27,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749478746] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 07:36:27,603 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 07:36:27,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 28] total 36 [2021-11-20 07:36:27,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951574874] [2021-11-20 07:36:27,604 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 07:36:27,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-11-20 07:36:27,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:36:27,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-11-20 07:36:27,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=247, Invalid=1013, Unknown=0, NotChecked=0, Total=1260 [2021-11-20 07:36:27,608 INFO L87 Difference]: Start difference. First operand 127 states and 183 transitions. Second operand has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2021-11-20 07:36:27,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:36:27,731 INFO L93 Difference]: Finished difference Result 128 states and 184 transitions. [2021-11-20 07:36:27,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-20 07:36:27,735 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) Word has length 747 [2021-11-20 07:36:27,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 07:36:27,737 INFO L225 Difference]: With dead ends: 128 [2021-11-20 07:36:27,737 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 07:36:27,739 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1932 GetRequests, 1897 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=271, Invalid=1061, Unknown=0, NotChecked=0, Total=1332 [2021-11-20 07:36:27,740 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 07:36:27,740 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 291 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 07:36:27,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 07:36:27,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 07:36:27,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:36:27,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 07:36:27,741 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 747 [2021-11-20 07:36:27,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 07:36:27,742 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 07:36:27,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 19 states have internal predecessors, (43), 8 states have call successors, (9), 1 states have call predecessors, (9), 9 states have return successors, (24), 24 states have call predecessors, (24), 8 states have call successors, (24) [2021-11-20 07:36:27,742 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 07:36:27,742 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 07:36:27,745 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 07:36:27,773 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-20 07:36:27,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 07:36:27,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 07:36:28,467 INFO L858 garLoopResultBuilder]: For program point fibonacciFINAL(lines 16 24) no Hoare annotation was computed. [2021-11-20 07:36:28,467 INFO L861 garLoopResultBuilder]: At program point fibonacciENTRY(lines 16 24) the Hoare annotation is: true [2021-11-20 07:36:28,467 INFO L854 garLoopResultBuilder]: At program point L22(line 22) the Hoare annotation is: (and (<= 2 fibonacci_~n) (= fibonacci_~n |fibonacci_#in~n|)) [2021-11-20 07:36:28,467 INFO L858 garLoopResultBuilder]: For program point L22-1(line 22) no Hoare annotation was computed. [2021-11-20 07:36:28,467 INFO L854 garLoopResultBuilder]: At program point L22-2(line 22) the Hoare annotation is: (let ((.cse0 (<= 1 |fibonacci_#t~ret4|)) (.cse2 (<= 6 fibonacci_~n)) (.cse1 (= fibonacci_~n |fibonacci_#in~n|))) (or (and .cse0 (<= 3 fibonacci_~n) .cse1 (<= |fibonacci_#in~n| 3)) (and (<= 3 |fibonacci_#t~ret4|) (<= 5 fibonacci_~n) .cse1 (<= |fibonacci_#in~n| 5)) (and (<= 21 |fibonacci_#t~ret4|) .cse2 .cse1) (and .cse2 (<= |fibonacci_#in~n| 8) (<= 13 |fibonacci_#t~ret4|) .cse1) (and (<= 8 |fibonacci_#t~ret4|) (<= fibonacci_~n 7) .cse2 .cse1) (and .cse0 (<= |fibonacci_#in~n| 2) (<= 2 fibonacci_~n) .cse1) (and (<= 2 |fibonacci_#t~ret4|) (<= 4 |fibonacci_#in~n|) (<= |fibonacci_#in~n| 4) .cse1) (and (<= 5 |fibonacci_#t~ret4|) .cse2 (<= fibonacci_~n 6) .cse1))) [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 23) no Hoare annotation was computed. [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point L22-3(line 22) no Hoare annotation was computed. [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point fibonacciEXIT(lines 16 24) no Hoare annotation was computed. [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point L17(lines 17 23) no Hoare annotation was computed. [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 37) no Hoare annotation was computed. [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 07:36:28,468 INFO L861 garLoopResultBuilder]: At program point L32(line 32) the Hoare annotation is: true [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point L32-1(line 32) no Hoare annotation was computed. [2021-11-20 07:36:28,468 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 07:36:28,469 INFO L858 garLoopResultBuilder]: For program point L29(lines 29 31) no Hoare annotation was computed. [2021-11-20 07:36:28,469 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 07:36:28,469 INFO L861 garLoopResultBuilder]: At program point L27(lines 27 38) the Hoare annotation is: true [2021-11-20 07:36:28,469 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 36) no Hoare annotation was computed. [2021-11-20 07:36:28,469 INFO L858 garLoopResultBuilder]: For program point L36(line 36) no Hoare annotation was computed. [2021-11-20 07:36:28,472 INFO L732 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2021-11-20 07:36:28,473 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 07:36:28,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:36:28 BoogieIcfgContainer [2021-11-20 07:36:28,479 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 07:36:28,480 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:36:28,480 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:36:28,480 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:36:28,480 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:35:04" (3/4) ... [2021-11-20 07:36:28,482 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 07:36:28,488 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fibonacci [2021-11-20 07:36:28,492 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 07:36:28,492 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 07:36:28,492 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 07:36:28,492 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 07:36:28,521 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:36:28,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:36:28,522 INFO L158 Benchmark]: Toolchain (without parser) took 84569.36ms. Allocated memory was 81.8MB in the beginning and 474.0MB in the end (delta: 392.2MB). Free memory was 48.0MB in the beginning and 210.5MB in the end (delta: -162.5MB). Peak memory consumption was 229.3MB. Max. memory is 16.1GB. [2021-11-20 07:36:28,522 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 54.5MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:36:28,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.05ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 47.8MB in the beginning and 107.4MB in the end (delta: -59.6MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2021-11-20 07:36:28,523 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.81ms. Allocated memory is still 130.0MB. Free memory was 107.4MB in the beginning and 106.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:36:28,523 INFO L158 Benchmark]: Boogie Preprocessor took 38.30ms. Allocated memory is still 130.0MB. Free memory was 106.2MB in the beginning and 105.3MB in the end (delta: 941.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:36:28,523 INFO L158 Benchmark]: RCFGBuilder took 416.39ms. Allocated memory is still 130.0MB. Free memory was 105.3MB in the beginning and 96.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 07:36:28,524 INFO L158 Benchmark]: TraceAbstraction took 83666.81ms. Allocated memory was 130.0MB in the beginning and 474.0MB in the end (delta: 343.9MB). Free memory was 95.7MB in the beginning and 213.7MB in the end (delta: -117.9MB). Peak memory consumption was 228.1MB. Max. memory is 16.1GB. [2021-11-20 07:36:28,524 INFO L158 Benchmark]: Witness Printer took 41.31ms. Allocated memory is still 474.0MB. Free memory was 212.6MB in the beginning and 210.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:36:28,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38ms. Allocated memory is still 81.8MB. Free memory was 54.5MB in the beginning and 54.5MB in the end (delta: 27.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.05ms. Allocated memory was 81.8MB in the beginning and 130.0MB in the end (delta: 48.2MB). Free memory was 47.8MB in the beginning and 107.4MB in the end (delta: -59.6MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.81ms. Allocated memory is still 130.0MB. Free memory was 107.4MB in the beginning and 106.2MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 38.30ms. Allocated memory is still 130.0MB. Free memory was 106.2MB in the beginning and 105.3MB in the end (delta: 941.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 416.39ms. Allocated memory is still 130.0MB. Free memory was 105.3MB in the beginning and 96.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 83666.81ms. Allocated memory was 130.0MB in the beginning and 474.0MB in the end (delta: 343.9MB). Free memory was 95.7MB in the beginning and 213.7MB in the end (delta: -117.9MB). Peak memory consumption was 228.1MB. Max. memory is 16.1GB. * Witness Printer took 41.31ms. Allocated memory is still 474.0MB. Free memory was 212.6MB in the beginning and 210.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 36]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 83.6s, OverallIterations: 8, TraceHistogramMax: 137, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.1s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 874 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 851 mSDsluCounter, 1189 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 988 mSDsCounter, 1476 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2065 IncrementalHoareTripleChecker+Invalid, 3541 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1476 mSolverCounterUnsat, 201 mSDtfsCounter, 2065 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5680 GetRequests, 5411 SyntacticMatches, 11 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4021 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred in iteration=7, InterpolantAutomatonStates: 181, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 57 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 200 PreInvPairs, 303 NumberOfFragments, 112 HoareAnnotationTreeSize, 200 FomulaSimplifications, 949 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 5 FomulaSimplificationsInter, 2705 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 74.8s InterpolantComputationTime, 4621 NumberOfCodeBlocks, 4333 NumberOfCodeBlocksAsserted, 129 NumberOfCheckSat, 6900 ConstructedInterpolants, 0 QuantifiedInterpolants, 11736 SizeOfPredicates, 32 NumberOfNonLiveVariables, 4470 ConjunctsInSsa, 292 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 242864/283494 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-20 07:36:28,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f6ade2ee-60fa-4a4e-871c-6f25942e353d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE